How does Cassia feel about her Match and the image of someone else's face on her micro card?

Even though Xander and Cassia are so close to each other, she is not willing to share what she saw on the micro card with him. She tries to sort through the situation in her mind. When she is with Xander, it feels incredibly right. She knows other people are envious of their situation, but she also is thrilled at the idea of the Match. It's unsettling to her is that someone else's face appeared on the card. She recognizes the face as someone else that she knows.